The Vietnam Travel Guide is free and contains optional in-app purchases. Free content includes overviews of all places, as well as access to content from Wikipedia, Yelp, Foursquare, Quandoo and Booking. Com. Functions such as day planner, routing and maps are available online. If you want to use the full suite of premium content, you can upgrade at a cost of USD 6.
Tripwolf has developed the app that falls into the Travel & Local category. Over 1K users downloaded and set up Vietnam Travel Guide and the most recent release was on Feb 20, 2019. Google Play displays that the tool is rated 3.4 by its users.